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嵌段共聚物聚己内酯-聚乙二醇-聚己内酯的合成和表征 被引量：6

Synthesis and Characterization of Block Copolymers Poly(ε-caprolactone)-Poly(ethylene oxide)-Poly(ε-caprolactone)
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摘要 以聚乙二醇(PEG)为引发剂在辛酸亚锡催化下引发己酸内酯开环聚合,制备PCL(聚己内酯)-PEG-PCL两亲三嵌段共聚物(PECL).采用红外光谱、体积排阻色谱及核磁共振对该共聚物进行表征,结果表明所合成共聚物具有预期结构.采用差热分析和原子力显微镜研究聚合物的微相分离结构;利用动态光散射测定了共聚物在水中自组装生成的纳米聚集体的粒径. Amphiphilic block copolymers, poly（ε-caprolactone）-poly（ethylene oxide）-poly（ε-caprolactone） （PECI.） were synthesized by ring-opened solution polymerization using PEG as macromolecular initiator and stannum octoate as catalyst, characterized by infrared spectra, gel permeation chromatography and nuclear magnetic resonance. The results show the synthesized products have an expected structure. The microphase separated structure was investigated by differential scanning calorimeter and atomic force microscopy ancl sizes of nanoparticles formed by self assemble with PECL were measured by dynamic laser scattering.
作者 刘炯 李惠琴 郭圣荣 殷明 姚炎庆
机构地区 上海交通大学药学院 上海交通大学分析测试中心 浙江理工大学材料与纺织学院
出处 《上海交通大学学报》 EI CAS CSCD 北大核心 2006年第8期1343-1347,共5页 Journal of Shanghai Jiaotong University
基金 上海市科委纳米专项基金资助(0352nm106)
关键词 两亲嵌段共聚物 微相分离 原子力显微镜 动态光散射 amphiphilic block copolymer microphase separation atomic force microscopy （AFM） dynamic laser scattering （DLS）
分类号 TB324 [一般工业技术—材料科学与工程]
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参考文献9

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二级参考文献15

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共引文献5

同被引文献48

引证文献6

二级引证文献18

上海交通大学学报
2006年 第8期

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